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All of the following are true about the structure of deoxyribonucleic acid except

All of the following are true about the structure of deoxyribonucleic acid except _______ 


  • complementary base pairing between the nitrogenous bases from two strands of nucleotides forms the secondary structure of DNA 

  • a single nucleotide has a phosphate group, pentose sugar, and nitrogenous base. The primary structure of DNA consists of nitrogenous bases sticking out from the backbone 

  • phosphodiester bonds connect deoxyribonucelotides in the primary structure of DNA 

  • nucleotides consist of a phosphate group, pentose sugar, and nitrogenous base. The primary structure of DNA has a sugar-phosphate backbone. 

  • deoxyribonucleotides consist of a nitrogenous base and a pentose sugar with the nitrogenous bases covalently bonded to make the primary structure

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Answer #1

a nucleotide consists of a nitrogenous base, phosphate group, pentose sugar. In DNA the pentose sugar is deoxyribose.

the nucleotides are linked together by the phosphodiester linkages, phosphodiester linkage is formed between the 5` phosphate group and 3`-OH group of the deoxyribose, the stretch of nucleotides is the primary structure, the secondary structure is formed by the base-pairing between the complementary DNA sequences, nitrogen bases of the nucleotides on the two strands interact via hydrogen bonding.

so the answer is deoxyribonucleotides consists of a nitrogenous base and a pentose sugar with the nitrogenous bases covalently bonded to make the primary structure.

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